package com.yzt.sys.service;

import com.yzt.sys.entity.User;
import com.yzt.base.service.IBaseService;

/**
 * <p>
 * 服务类
 * </p>
 *
 * @author Y
 * @since 2021-01-25
 */
public interface IUserService extends IBaseService<User> {

	boolean exit(String username);
}
